能源化学(英文) ›› 2015, Vol. 21 ›› Issue (2): 193-198.DOI: 10.1016/S2095-4956(15)60300-X

• ARTICLES • 上一篇    下一篇

Novel application of LiCoO2 as a high-performance candidate material for supercapacitor

Yanan Xub, Liangzhong Dinga, Tongsheng Zhonga, Xiao Hanc, Lifang Jiaob, Huatang Yuanb, Yijing Wangb   

  1. a. College of Chemistry and Environment Engineering, Hunan City University, Yiyang 413000, Hunan, China;
    b. Institute of New Energy Material Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Key Laboratory of Advanced Energy Materials Chemistry (MOE), Tianjin Key Lab of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300071, China;
    c. Maple Leaf International School-Tianjin TEDA, Tianjin 300457, China
  • 收稿日期:2014-09-23 修回日期:2014-12-25 出版日期:2015-03-23 发布日期:2015-03-23
  • 通讯作者: Liangzhong Ding, Yijing Wang
  • 基金资助:

    This work was supported by the Scientific Research Fund of Hunan Provincial Science & Technology Department (2012FJ3023) and the Research Fund for the Doctroral Program of Higher Education of China (20120031110001).

Novel application of LiCoO2 as a high-performance candidate material for supercapacitor

Yanan Xub, Liangzhong Dinga, Tongsheng Zhonga, Xiao Hanc, Lifang Jiaob, Huatang Yuanb, Yijing Wangb   

  1. a. College of Chemistry and Environment Engineering, Hunan City University, Yiyang 413000, Hunan, China;
    b. Institute of New Energy Material Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Key Laboratory of Advanced Energy Materials Chemistry (MOE), Tianjin Key Lab of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300071, China;
    c. Maple Leaf International School-Tianjin TEDA, Tianjin 300457, China
  • Received:2014-09-23 Revised:2014-12-25 Online:2015-03-23 Published:2015-03-23
  • Contact: Liangzhong Ding, Yijing Wang
  • Supported by:

    This work was supported by the Scientific Research Fund of Hunan Provincial Science & Technology Department (2012FJ3023) and the Research Fund for the Doctroral Program of Higher Education of China (20120031110001).

摘要: Electrochemical performances of LiCoO2 as a candidate material for supercapacitor are systematically investigated. LiCoO2 nanomaterials are synthesized via hydrothermal reaction with consequent calcination process. And the particle size increases as the calcination temperature rises. LCO-650 sample with the largest particle size displays the maximum capacitances of 817.5 F·g-1 with the most outstanding capacity retention rate of 96.8% after 2000 cycles. It is shown that large particle size is beneficial to the electrochemical and structural stability of LiCoO2 materials. We speculate that the micron-sized waste LiCoO2 materials have great potential for supercapacitor application. It may provide a novel recovered approach for spent LIBs and effectively relieve the burdens on the resource waste and environment pollution.

关键词: lithium cobalt oxide, hydrothermal reaction, supercapacitor, calcination

Abstract: Electrochemical performances of LiCoO2 as a candidate material for supercapacitor are systematically investigated. LiCoO2 nanomaterials are synthesized via hydrothermal reaction with consequent calcination process. And the particle size increases as the calcination temperature rises. LCO-650 sample with the largest particle size displays the maximum capacitances of 817.5 F·g-1 with the most outstanding capacity retention rate of 96.8% after 2000 cycles. It is shown that large particle size is beneficial to the electrochemical and structural stability of LiCoO2 materials. We speculate that the micron-sized waste LiCoO2 materials have great potential for supercapacitor application. It may provide a novel recovered approach for spent LIBs and effectively relieve the burdens on the resource waste and environment pollution.

Key words: lithium cobalt oxide, hydrothermal reaction, supercapacitor, calcination